View clinical trials related to Polyp.
Filter by:By means of a questionnaire the investigators will study the implementation of hysteroscopy in Flanders and the Netherlands
The aim of this study was to compare general anesthesia (GA) and combined (epidural and spinal) anesthesia (CA) for laparoscopic cholecystectomy. General anesthesia is a gold standard for laparoscopic cholecystectomy(LC). The use of combined anesthesia may offer several advantages over general anesthesia. Fifty patients will be randomly assigned to either the CA LC (25 patients) or GA LC (25 patients). All patients has symptomatic gall stone disease or polyp of gall bladder. Intraoperative events related to combined anesthesia , postoperative complications, pain score and duration of operation time will record.
The purpose of this study is to determine whether experienced endoscopy nurse participation during screening colonoscopy could increase polyp and adenoma detection rate.
The EndoCuff is novel flexible cuff that can be attached to the distal tip of the colonoscope and helps to flatten large mucosal folds during withdrawal. The study hypothesis is that the use of the Endocuff (EC) increases the adenoma detection rate during colonoscopy. The study purpose is to compare EC-assisted colonoscopy with standard colonoscopy for polyp detection.
To evaluate the safety of using the NaviAid™ G-Eye system during Colonoscopy
In most of situation, left colon (especially SD junction) is considered the most difficult part of colonoscopy, where endoscopist may encounter difficulty for scope insertion and patients may feel pain or uncomfortable. It is suggested more than half of the whole time for scope insertion should be used in left colon. Many methods, such as water immersion, abdominal palpation, have been used to facilitate insertion in left colon. Colonoscopy with whole-colon water exchange method has been shown to be useful for reducing medication used, pain experienced during colonoscopy, increasing the success rate of cecum intubation and adenoma detection rate in sedated and unsedated patients undergoing screening colonoscopy. Exchange of water during scope insertion minimizes loop formation and prevents lengthening and distension of the colon during colonoscopy. This will facilitate the colonoscopy in average or difficult colonoscopy. However, it is not known whether the benefits of water exchange method of colonoscopy was mainly due to its effect on the left colon. We hypothesized that left-colon water exchange colonoscopy (LWE) may have the similar effect regarding the maximal pain score and mean pain score in unsedated patients compared with whole-colon water exchange colonoscopy (WWE). At the mean time, LWE may reduce the insertion time compared with WWE. Here we performed a prospective, randomized controlled study to investigate the efficacies of whole-colon water exchange, left-colon water exchange and air methods of colonoscopy on pain score and insertion time in unsedated outpatients.
The purpose of this study is to demonstrate that NIR fluorescence angiography using the PINPOINT Endoscopic Fluorescence Imaging System ("PINPOINT System" or "PINPOINT") can assess viability of colon tissue during laparoscopic left colectomy. This information will provide the surgeon with clinically relevant information in assessing whether or not the tissue has adequate blood supply in the lower section of the colon prior to a colectomy.
The purpose of this study is to compare the additional diagnostic yield obtained by performing NaviAid™ G-Eye procedure vs. the diagnostic yield obtained by performing standard colonoscopy procedure.
The intestinal ends must be rejoined after colonic resection. Conventional methods include sutured and stapled anastomoses, which is associated with 3-6% leakage after colonic surgery. The leakage of an anastomosis can cause serious consequences, such as abdominal infections and/or sepsis. Early detection of anastomotic leakage is the best way to avoid serious abdominal infections. The methods that are used today to detect leaks are unfortunately not very accurate. These methods include monitoring symptoms, temperature, and CRP-levels, and performing abdominal examinations and tomography scans. Because of the difficulties in objectively assessing these parameters, the anastomotic leaks are often diagnosed late. When reoperation is required, a permanent stoma may be made at the level of the sigmoid colon. The CARP system has been developed to achieve a safe anastomosis. The CARP is designed to providing an improved contact surface between the two intestinal ends and the ability to precisely investigate the anastomosis during and after surgery using the catheters of the CARP system. Standardized use of the CARP to anastomose the large intestine may provide significant advantages in the field of colorectal surgery.
Colorectal cancer (CRC) is the second most common cancer and the fourth leading cause of cancer death in Korea. Colonoscopy with polypectomy decreases the incidence and mortality from colorectal cancer. However, significant lesions can be missed during colonoscopy. Recent retrospective studies have shown that fellow involvement as a second observer may increase adenoma detection rate in colonoscopy. The aim of this prospective, multicenter, randomized study is to evaluate the impact when endoscopy nurse participate in adenoma detection during screening colonoscopy. The primary outcome measure is the adenoma detection rate (ADR).